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EP0921835A1 - Embout protecteur d'aiguille - Google Patents

Embout protecteur d'aiguille

Info

Publication number
EP0921835A1
EP0921835A1 EP98901187A EP98901187A EP0921835A1 EP 0921835 A1 EP0921835 A1 EP 0921835A1 EP 98901187 A EP98901187 A EP 98901187A EP 98901187 A EP98901187 A EP 98901187A EP 0921835 A1 EP0921835 A1 EP 0921835A1
Authority
EP
European Patent Office
Prior art keywords
needle
hub
needle hub
side walls
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98901187A
Other languages
German (de)
English (en)
Other versions
EP0921835B1 (fr
Inventor
Kevin H. Pike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Span America Medical Systems Inc
Original Assignee
Vadus Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vadus Inc filed Critical Vadus Inc
Publication of EP0921835A1 publication Critical patent/EP0921835A1/fr
Application granted granted Critical
Publication of EP0921835B1 publication Critical patent/EP0921835B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle

Definitions

  • the present invention relates to a needle protector. More specifically, the invention is directed to a needle protector having a body, a needle hub and a needle.
  • the needle is mounted on the needle hub.
  • the needle hub When the needle hub is moved along body, the needle is retracted into the body where it is locked into position.
  • certain viruses such as the hepatitis B virus can be transmitted from one person to another by accidental "needle-poke". This type of accident can happen during medical procedures.
  • An example of such a procedure is in the insertion of a catheter into a blood vessel of a patient with a needle.
  • the needle is removed from the catheter at which time the pointed end of the needle can be accidentally poked into the person handling the needle or someone in the vicinity of the needle, the residual blood on the needle can be inserted in the person poked by the needle thereby transmitting a virus in the blood.
  • the present invention is directed to a needle protector including a body, a needle hub and a needle.
  • the body has a first end and a second end.
  • the body includes a plurality of side walls extending between the first and second ends in a geometric configuration, such a hexagon.
  • the side walls define an interior space.
  • the side walls define at least two slots.
  • the needle hub having a front end, a back end, a first side and a second side is positioned in the interior space of the body.
  • the front end is adapted to receive a needles.
  • the first and second sides each includes a handle.
  • the handles extend through the slots of the body to positions outside of the body.
  • the needle is in communication with the front end of the needle hub. Movement of the handles of the needle hub causes corresponding movement of the needle. Therefore, when the handles are moved from the first end of the body to the second end of the body along the slots of the body, the needle moves from the exterior of the body into the interior space defined by the body. Accordingly, the needle is fully contained in the body thereby preventing accidental needle-pokes.
  • Fig. 1 is a perspective view of a needle protector according to the present invention attached to a catheter hub;
  • Fig. 2 is a perspective view of the body of the present needle protector
  • Fig. 3 is a top view of the body of the present needle protector
  • Fig. 4 is a cross- sectional view taken along line ⁇ 4 of Fig. 3;
  • Fig. 5 is an elevational view of the second end of the body of the present needle protector
  • Fig. 6 is an elevational view of the first end of the body of the present needle protector
  • Fig. 7 is a cross-sectional view taken along line 7-7 of Fig. 3;
  • Fig. 8 is a perspective view of the end cap according to the present invention.
  • Fig. 9 is a side elevational view of the end cap shown in Fig. 8;
  • Fig. 10 is a cross-sectional view taken along line 10-10 of Fig. 9;
  • Fig. 1 1 is a view similar to the view of Fig. 1 in which the needle hub according to the present invention has been moved from the first end of the body to the second end of the body;
  • Fig. 12 is a perspective view of the needle hub and needle according to the present invention
  • Fig. 13 is a top view of the needle hub according to the present invention
  • Fig. 14 is a cross-sectional view taken along line 14-14 of Fig. 13;
  • Fig. 15 is a cross-sectional view taken along line 15-15 of Fig. 13;
  • Fig. 16 is an elevational view of the back end of the needle hub;
  • Fig. 17 is a cross-sectional view taken along line 17-17 of Fig. 11.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The preferred embodiment and best mode of the present invention will now be described in detail with reference being made to the drawings.
  • the needle protector of the present invention is indicated generally in the drawings by the reference number "10".
  • the needle protector 10 includes a body 12 having a first end 14 and a second end 16. As shown in Figs. 1, 2, 4 and 6, the first end 14 is adapted to receive a catheter hub 18.
  • the first end 14 includes a plurality of threads 20, as shown in Fig.4, for receiving mating threads (not shown) positioned on the connection end 22 of the catheter hub 18.
  • the first end 14 of the needle protector 10 can be adapted to receive a variety of devices depending on the application.
  • the catheter hub 18 shown in the present drawings will be used in conjunction with the needle protector 10.
  • the second end 16 of the body 12 can be adapted to receive an end cap 24.
  • the cap 24 includes a head 26 having an exterior surface 28 and an interior surface 30.
  • a first leg 32 and a second leg 34 extend outwardly from the interior surface 30 of the head 26.
  • each of the first and second legs 32 and 34 includes a locking recess 36 having a locking surface 38. The first and second legs 32 and 34 are inserted in the second end 16 of the body 12 to attach the cap 24 to the body.
  • the body 12 includes a plurality of side walls extending between the first end 14 and the second end 16 in a geometric configuration.
  • the body 12 includes a first side wall 40, a second side wall 42, a third side wall 44, a fourth side wall 46, a fifth side wall 48 and a sixth side wall 50.
  • the side walls 40-50 are arranged to form a hexagonal configuration. It should be understood that the number of side walls of the body 12 can be changed to form various polygonal configurations, with a hexagonal configuration being preferred. As described below, the hexagonal configuration allows the needle protector 10 to be easily handled during use.
  • the fourth side wall 46 provides a flat, smooth surface for contact with, for example, the skin of a patient.
  • the first sidewall 40 provides a surface upon which, for example, a thumb of a person using the needle protector 10 can rest during handling. As shown in
  • a plurality of spaced upwardly extending projections 52 are positioned on the first side wall 40.
  • the projections 52 may be engaged by the thumb to more accurately and easily handle the needle protector 10.
  • the side walls of the body 12 define at least two slots.
  • the second and third side walls 42 and 44 define a first slot 54
  • the fifth and sixth side walls 48 and 50 define a second slot 56.
  • the first and second slots 54 and 56 extend longitudinally between the first end 14 and the second end 16 of the body 12 in an opposed relationship to one another.
  • the first and second slots 54 and 56 define first and second locking portions 58 and 60, respectively, adjacent the second end 16 of the body 12 in opposed relationship to one another.
  • the first and second locking portions 58 and 60 are positioned adjacent the locking recesses 36 of the first and second legs 32 and 34 of the end cap 24.
  • the side walls 40-50 define an interior space
  • a needle opening 64 is defined by the body 12 at the first end 14.
  • the needle opening 64 extends from the exterior of the body 12 to the interior space 62.
  • the needle protector 10 includes a needle hub 66 having a front end 68, a back end 70, a first side 72 and second side 74.
  • the needle hub 66 is movably positioned in the interior space 62 of the body 12.
  • the front end 68 of the needle hub 66 is adapted to receive a needle 76 having a needle fluid passageway 78.
  • the front end 68 includes a front end opening 80 for receiving the needle 76.
  • the needle hub 66 defines a hub fluid passageway 82 extending between the front and back ends 68 and 70.
  • the needle 76 is positioned in the front end opening 80 so that the needle fluid passageway 78 is in communication with the hub fluid passageway 82.
  • the back end 70 of the needle hub 66 is adapted to receive absorbent material 84.
  • the absorbent material 84 absorbs any fluid, such as blood, contained in the hub fluid passageway 82.
  • the first and second sides 72 and 74 of the needle 66 include first and second handles 86 and 88, respectively.
  • the first and second handles 86 and 88 include first and second wings 90 and 92, respectively.
  • the first and second wings 90 and 92 extend from the needle hub 66 through the first and second slots. 54 and 56, respectively, to the exterior of the body 12.
  • the first and second handles 86 and 88 include first and second handle members 94 and 96, respectively, attached to the first and second wings 90 and 92, respectively.
  • Each of the first and second handle members 94 and 96 includes an interior surface 98 and an exterior surface 100.
  • each exterior surface 100 includes a plurality of spaced grips 102. The grips 102 allow the first and second handles 86 and 88 to be firmly gripped during actuation of the needle hub 66.
  • the first and second handle members 94 and 96 each includes a locking projection 104 extending inwardly from the interior surface 98.
  • Each locking projection 104 includes a ramp surface 106 and a locking surface 108. As shown in Fig. 1 7, the locking projections 104 are received by the locking recesses 36 of the first and second legs 32 and 34.
  • the locking surfaces 108 of the locking projections 104 engage the recess surfaces 38 of the locking recesses 36 to lock the needle hub 66 to the second end 16 of the body 12.
  • the catheter hub 18 includes a catheter 110.
  • the needle hub 66 is positioned adjacent the first end 14 of the body 12.
  • the needle 76 which includes a pointed end 112 extends through the catheter hub 18 and the catheter 110.
  • the catheter 110 is to be inserted, for example, in the blood vessel of a patient (not shown)
  • the needle protector 10 is moved to the site of the blood vessel.
  • the user of the needle protector 10 grips the body 12 and places his or her index finger on the first side wall 40. The finger engages the projections 52 so that the body 12 can be accurately positioned with respect to the blood vessel.
  • Fourth side wall 46 is positioned on the surface of the skin of the patient adjacent the blood vessel. It has been found that the smooth, flat surface provided by the fourth side wall 46 aids in the positioning of the needle protector 10 with respect to the blood vessel.
  • the pointed end 112 of the needle 76 When the pointed end 112 of the needle 76 is properly positioned, the user of the needle protector 10 pushes the pointed end of the needle 112 into the blood vessel. Blood from the blood vessel "flashes" or enters the needle fluid passageway 78 and proceeds to the hub fluid passageway 82.
  • the absorbent material 74 absorbs the blood to prevent leakage from the needle hub 66. Insertion of the needle 76 into the blood vessel results in the insertion of the catheter 110 into the blood vessel. Referring to Figs.
  • the user of the needle protector 10 uses his or her thumb and forefinger to engage the first and second handles 86 and 88 of the needle hub 66.
  • the grips 102 prevent slippage by the user.
  • the user pulls back on the first and second handles 86 and 88 thereby causing the needle hub 66 to move from the first end
  • the first and second wings 90 and 92 travel along the first and second slots 54 and 56, respectively, to guide the needle hub 66 along its predetermined path.
  • the first and second wings 90 and 92 maintain the needle hub 66 in proper axial alignment with respect to the body 12. Movement of the needle hub 66 causes corresponding movement of the needle 76.
  • the needle hub 66 moves toward the second end 16 the needle 76 passes through the needle opening 64 into the interior space 62 of the body 12.
  • the needle 76 is fully contained in the interior space 62.
  • the locking projections 104 are received by the locking recesses of the cap 24 to prevent forward movement of the needle hub 66.
  • the engagement of the locking surface 108 to the recess surface 38 provides a positive lock so that the needle 76 cannot exit through the needle opening 64.
  • the user of the needle protector disengages the needle protector from the catheter hub 18. The catheter hub 18 can then be used as intended.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne un embout protecteur d'aiguille constitué d'un corps, d'un embout d'aiguille et d'une aiguille. Le corps inclut une pluralité de parois latérales qui s'étendent en configuration géométrique entre la première et la deuxième extrémité. Les parois latérales délimitent un espace interne, une première fente et une deuxième fente. L'embout d'aiguille, qui comprend une extrémité avant, une extrémité arrière, un premier côté et un deuxième côté, est placé dans l'espace interne du corps. L'extrémité avant est adaptée pour recevoir une aiguille. Le premier côté et le deuxième côté incluent chacun un dispositif de maniement, lequel s'étend à travers les fentes et se prolonge hors du corps. L'aiguille communique avec l'extrémité avant de l'embout d'aiguille. Un mouvement des dispositifs de maniement entraîne un mouvement correspondant de l'aiguille. L'aiguille peut être rentrée à l'intérieur du corps et bloquée dans cette position.
EP98901187A 1997-01-08 1998-01-08 Embout protecteur d'aiguille Expired - Lifetime EP0921835B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/778,235 US6080137A (en) 1997-01-08 1997-01-08 Needle protector
US778235 1997-01-08
PCT/US1998/000159 WO1998030267A1 (fr) 1997-01-08 1998-01-08 Embout protecteur d'aiguille

Publications (2)

Publication Number Publication Date
EP0921835A1 true EP0921835A1 (fr) 1999-06-16
EP0921835B1 EP0921835B1 (fr) 2003-08-27

Family

ID=25112701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98901187A Expired - Lifetime EP0921835B1 (fr) 1997-01-08 1998-01-08 Embout protecteur d'aiguille

Country Status (5)

Country Link
US (1) US6080137A (fr)
EP (1) EP0921835B1 (fr)
DE (1) DE69817516T2 (fr)
ES (1) ES2205439T3 (fr)
WO (1) WO1998030267A1 (fr)

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Also Published As

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ES2205439T3 (es) 2004-05-01
EP0921835B1 (fr) 2003-08-27
DE69817516D1 (de) 2003-10-02
DE69817516T2 (de) 2004-06-17
US6080137A (en) 2000-06-27
WO1998030267A1 (fr) 1998-07-16

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